Minecraft Schematic Viewer

This VS Code extension previews Minecraft .litematic and WorldEdit .schem files directly in an editor tab.

Implementation Notes

• The format understanding follows the current parser paths for .litematic and .schem.
• The 3D rendering uses the bundled 3DBLOCKS renderer and Minecraft resource data.
• Deprecated viewer code paths are intentionally ignored.

Behavior

• Clicking a *.litematic or *.schem file opens a custom read-only preview tab.
• The preview renders the structure in a VS Code webview.
• The sidebar shows dimensions, block counts, palette size, and material counts.
• Saving or changing the file on disk refreshes the preview automatically.

Build

Run these commands from the extension project folder:

npm run build

This expects the project dependencies to already be installed.

Packaging Notes

• The extension bundle is emitted to dist/.
• Minecraft renderer resources are expected under resources/minecraft.

License

This project is licensed under AGPL-3.0.

Disclaimer

This extension is an independent, unofficial project. It is not affiliated with, endorsed by, sponsored by, or otherwise related to Minecraft®, Mojang Studios, Microsoft, or any of their affiliates.